pagination.ts•1.25 kB
export type PaginationData = {
currentPage: number;
firstRowOnPage: number;
lastRowOnPage: number;
totalRows: number;
prevPage?: number;
nextPage?: number;
endPage?: number;
itemsPerPage: number;
displayText: string;
};
export function getPaginationFor(table: string, page: number, totalRows: number, itemsPerPage: number): PaginationData {
if (totalRows === 0) {
return {
currentPage: 1,
firstRowOnPage: 0,
lastRowOnPage: 0,
totalRows: totalRows,
endPage: 1,
itemsPerPage,
displayText: `Showing 0 to 0 of 0 records`
};
}
const endPage = Math.ceil(totalRows / itemsPerPage);
// Ensure the current page is within valid bounds
const validPage = Math.min(Math.max(page, 1), endPage);
const firstRowOnPage = (validPage - 1) * itemsPerPage + 1;
const lastRowOnPage = validPage === endPage ? totalRows : validPage * itemsPerPage;
return {
currentPage: validPage,
firstRowOnPage,
lastRowOnPage,
totalRows: totalRows,
prevPage: validPage > 1 ? validPage - 1 : undefined,
nextPage: validPage < endPage ? validPage + 1 : undefined,
endPage,
itemsPerPage,
displayText: `Showing ${firstRowOnPage.toLocaleString()} to ${lastRowOnPage.toLocaleString()} of ${totalRows.toLocaleString()} records`
};
}